Orchard-heater.



W. C. SOHEU.

ORCHARD HEATER. APPLwATI/ON FILED SEPT. 23,1913.

Patented June 16, 1914 WTNESSESY ATTuRNav.

WILLIAM c. sensu, or GRAND JUNCTION, ooiomndnssienon yiro umarmen on.

v(1I-IARD HEATER COMPANY, GF WHEELING, WEST VIRGINIA,

wns'r vrnernra.

a. conronaraton or'.

` K application moa soptombor aaisiaf soraino.7s1,421.-l

Specification of Lett-ers atent. i atentel 16,

To zllfwhom it may concern Boa known that-1, www C; sono; a

citizen of vthe United States of Americafand resident of Grand Junction', county of Mesa,

and 'State of Colorado, have'inventedfcer-A tain new and useful v Improvements* in a speciiication.-

This invention relates jbroadl'yf' to o il-y stack which' is so' constructed that the :gas

arising frorn'the receptacle outside the stack and air from without the device are together admitted thereto' for roducing combustion.

And a still further ob]ect within the contemplation of the invention is to provide a stack having its lower end yso formed as to ad'mlt thereto a strong draft of air directed Aover the surface of the oil in the receptacle when said oil has burned down to a point wheref.l

the less volatile portion remains. i v

With these and other objects in view, thev invention resides in certain novel features' of construction, the arrangement of parts and combinations of elementsV which will hereinafter be described, reference being had to the accompanying drawings, forming a part of this specification, in whichd Figure 1 is a Vtopplan View of an orchard heater embodying the invention; Fig.,2 is a" central vertical section taken on the line 2-2, Fig. l; Fig. Sis 'an enlarged detail section of a portion of 'the device, said section being taken on said line 2-2, Fig. V1; and Fig. 4 is a section lon the line 4 4,

Fig. l, showing .the stack in sideelevation.

Referring to said drawings, 1 designates an oil receptacle, or container, herein shown as circular in form, but which may be of any other referred form; and 2 "indicates a cover t erefor, the same having an opening therethrough about which is disposed a circular ring or collar 3 which preferably extends upward a short distance above the Orchard-HeatersL'of which lthe following is4 'ing i'n the cover 2, preferably at the bottoms .'c'ombustin, 'as may -b'e found desirable. y

j tions are induce used,

surface ,or top of 'said cover. 'Fitted within said collar and having its lower end resting upon tho bottom of thooonainoprs a Saok 4. ll

'Saidstack is formed of sheet metalwhich is corrugated longitudinally, or which is otherwisel lrregularly'shaped to aord 'a plurality of'up'right passages '5 between 'the staekand I the collarand a pluralityof apertures 6 are 'providedin the ,stack adjacentl t the openo the concave portions of the 'corrugations and in-a horizontal line located between the top and bottom edges voi" said collar, as A shown.

In practice; the heat generated by the oil burning within the stack creates `a suction which y simultaneously acts through 'said apertures 6 to draw-upward along the assages 5 gases generated witlii'nthe container outside the stack and to draw downward along. said passages air 'from without the f container, said gas4 and air together entering thestaclr through said apertures to pr'oduce a mixture i`n which the are more or y Additional apertures, asi? and v8, 'may .be "provided in the stackat suitable points 'above the cover forl'admitting air 'for further 'facilitating 'As hereinbefore stated, thestack is preferably formed of more `or less deeply 'cr'rl'lgated, '-grooved, orfluted, sheet metal; but it 1s obvious that any virregular formation mayl bc employed which affords the ypinsisag'ges for down-drafts vof v air and updrafts of gas, with the apertures for both air andv gas 1o- 'cated in close'proximity to jthe .openlng in the cover whereby drafts p v in said passagesgv Provided Yfinl 'the lower end of the stack is a' draft 'opening 9 v"oflinverted V-shape formed by cutting away sections of themetal of which the stack is composed, vas s hov'vn in Figs. 2, A3 and 4, said draft opening "ing l adapted, as the fuel in the container down, to vbe gradually uncovered to pro- 'gressiv'ely increase the inlet draft space to the stack from the dampercontrolled openings 1 0 commonly provided in the cover.

Where low grade, or asphaltum, oils are as is the common practice, the heavier, less volatile portion of the oil is contained at the' bottom of the container, while the l I:

richer oil lies on the surface; consequently, vaporizatlon and the maintenance of perfect from both diret-f i burns 100 combustion becomes more difficult as the bottom of the container is approached. This, therefore, renders the provision of the opening 9 for coperation with the damper-controlled openings l particularly advantageous, since a strong and increasing draft is thereby induced to play over the surface of -the low-burning oil in the container for effecting the necessary vaporization, resulting m vigorous combustion being mainy tained until all the oil is consumed.

Having thus described my invention, what A I claim as new, and desire to secure by Lettures.

2. In an orchard heater, the combination with an oil container and a cover, the latter having an opening therein, of a stack tted within and extending above and below 'said opening,the Walls of said stack being irregular in form to afford passages which yopen at opposite ends to the atmosphere and to the interior of the container-without the stack, and apertures in said walls at the bottoms of said passages through which a suction is exerted for simultaneously inducing down-drafts of air and up-drafts of gas which together enter the stack through said apertures.

3. In an orchard heater, the combination with an oil container and a cover, the latter having an opening therein, of a collar encircling saidl opening, a stack fitted within and extending above and below said collar, the walls of said stack' being irregular in form to afford passages which open at opposite ends to the atmosphere and to the interior of the container outside the stack, and apertures in said walls in close proximity to said collar through which a suction is exerted for simultaneously inducing downdrafts of air and up-drafts of gas along said passages and introducing the same within the stack.

4. In an orchard heater, the combination with an oil container anda cover, the latter having an opening therein, of a collar encircling said opening, a stack fitted within said collar and restin upon the bottom of the container, the wal s of said stack being irregular in form to afford passages which open at opposite ends to the atmosphere and to the interior of the container outside the stack, and apertures in said walls through which down-drafts of .ainand up-drafts of gas are together drawn into the stack.

5. In an orchard heater, the combination with an oil container and a cover, the latter having an opening therein, of a collar encircling said opening, a stack fitted within said collar and resting upon the bottom of the container, the walls of said stack being irregular in form to afford passages which open at opposite ends to the atmosphere and tothe interior of the container outside the stack, apertures in said walls through which down-drafts of air and up-drafts of gas are together drawn into the stack, and an irregular opening in the lower end of said stack adapted tobe gradually uncovered to progressively increase its capacity for admitting to the stack drafts introduced over the surface of the fuel in the container.

6.- In an orchard heater, the combination with an oil container and a cover, the latter having an opening therein, of a lcollar encircling said opening, a stack fitted within said collar yand resting upon the bottom of the container, the walls of said stack being irregular in form to afford passages which open at opposite ends to the atmosphere and to the interior of the container outside the stack, apertures in said walls through which down-drafts of air and up-drafts of gas are together drawn into the stack, and an inverted V-shaped opening in the lower end of said stack adapted to be gradually uncov- -ered to progressively increase its capacity for admitting to the stack drafts introduced over the surface of the oil in the container. In testimonv whereof, I affix my signature in presence o two subscribing witnesses.

WILLIAM C. SCHEU.

Witnesses l I-I. E. DUNLAP, L; D. MORRIS. 

